Heroku Deployment of Node.js with Compass + Sass Foundation 3

Trying to get my application up and running with SASS + Compass Foundation 3 and am having issues I have already updated to the node.js buildpack on cedar stack. I get the WARNING: No version of Node.js specified in package.json, however I am specifying a version. I am not sure if this is because I now have a Gemfile and a config.rb file for Compass within my repo but everything is working great on local.

{
  "name": "Name",
  "version": "1.0.1",
  "engines": {
    "node": "0.8.x",
    "npm": "1.1.x"
  },
  "private": true,
  "scripts": {
  "start": "node app"
  },
  "dependencies": {
  "express": "2.4.3",
  "jade": "*",
  "mailchimp": "*" ,
  }
}